| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 1 | |
| #2 | Belgium | 1 | |
| #3 | Switzerland | 1 | |
| #4 | German Democratic Republic | 1 | |
| #5 | Germany | 1 | |
| #6 | Spain | 1 | |
| #7 | Israel | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Machines | |
| #3 | Materials and metallurgy | |
| #4 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Frey Rudolf | 6 |
| #2 | Litschke Peer-Ingo | 2 |
| #3 | Litschke Peer-Ingo Dr | 2 |
| #4 | Litschke Peer Ingo | 2 |
| #5 | Peeaaingo Richiyuke | 1 |
| #6 | Litschke P I | 1 |
| #7 | Frey R | 1 |
| #8 | Ruudorufu Furai | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2950462A1 | METHOD FOR THE DISPOSAL AND FINAL STORAGE OF WASTE MATERIALS |